You are viewing an outdated report. The latest version of this report was published on September 1st, 2024

Web server surveys have been around for a long time. One of the problems with running a survey is how to produce meaningful results given the number of choices with the collection and reporting methodologies. Some examples:

• How does one treat wildcarded DNS sites that generate unlimited number of unique hostnames, all residing on the same system?
• How does one treat taste-testing web sites that do not have any unique content on them at all?
• If very large number of web sites reside on a single IP address, is it a a case of search engine spamming, a large number of low traffic web sites on a single platform, or a web hosting facility using load-redirection for a large number of legitimate web sites?
• How "greedy" or aggressive should the hunt for new web sites be?

All of the above are issues that our conventional web server survey deals with. The biggest issue that comes up time and again, however, is the fact that our conventional survey counts unique hostnames, not unique installations. This can seriously impact market share statistics. Case in point: the data set used both web server survey reports contains (for the last month's data set) 75,318,261 hostnames, but only 5,784,206 distinct IP addresses.

This particular report addresses this in part by counting unique IP addresses in an attempt at answering the question of how many installations of a particular server might exist. By using the IP address as a proxy for the physical hardware on which a server is running, we still need to be aware that it is not a perfect 1 to 1 mapping:

• A load balanced network of servers might share a single public facing IP address, and be undercounted.
• A single server may have multiple public IP addresses bound to one or more network cards on the system, and thus still be counted more than once.

While not a perfect solution, we feel that counting web servers by IP will give a much closer view of the number of server installs for a given technology.

Click any server to see detailed graphs and histories.

Server	February 2015 Count	February 2015 %	January 2015 Count	January 2015 %	Growth %
Apache	3,075,261	53.17	3,087,849	53.68	-0.96
Microsoft-IIS	1,038,453	17.95	1,024,765	17.82	0.77
nginx	555,977	9.61	540,248	9.39	2.34
null	500,144	8.65	493,904	8.59	0.70
Microsoft-HTTPAPI	171,791	2.97	168,575	2.93	1.34
Apache-Coyote	61,547	1.06	62,279	1.08	-1.73
IdeaWebServer	56,409	0.98	56,412	0.98	-0.56
IIS	34,810	0.60	39,502	0.69	-12.37
LiteSpeed	32,749	0.57	32,568	0.57	-0.00
cloudflare-nginx	26,872	0.46	15,697	0.27	70.24
lighttpd	18,563	0.32	18,874	0.33	-2.20
BigIP	15,538	0.27	15,513	0.27	-0.40
squid	10,718	0.19	10,436	0.18	2.13
A	10,324	0.18	10,415	0.18	-1.43
AkamaiGHost	9,197	0.16	9,435	0.16	-3.07
Rapidsite	8,342	0.14	8,519	0.15	-2.62
Lotus-Domino	7,901	0.14	8,063	0.14	-2.56
Tengine	5,236	0.09	5,561	0.10	-6.37
Safedog	5,148	0.09	4,872	0.08	5.08
sffe	5,087	0.09	5,115	0.09	-1.10
WWW	4,552	0.08	3,911	0.07	15.74
Cowboy	4,447	0.08	4,496	0.08	-1.64
IBM_HTTP_Server	4,183	0.07	4,363	0.08	-4.66
Varnish	3,202	0.06	3,245	0.06	-1.88
kangle	2,727	0.05	2,765	0.05	-1.92
Resin	2,676	0.05	2,756	0.05	-3.44
Zope	2,592	0.04	2,651	0.05	-2.77
AmazonS3	2,503	0.04	2,478	0.04	0.45
EZproxy	2,493	0.04	2,483	0.04	-0.16
Oracle-Application-Server-10g	2,230	0.04	2,289	0.04	-3.12
-	2,132	0.04	2,137	0.04	-0.79
Flywheel	2,028	0.04	1,839	0.03	9.66
GSHD	1,829	0.03	1,478	0.03	23.06
WDaemon	1,662	0.03	1,685	0.03	-1.91
openresty	1,614	0.03	1,540	0.03	4.22
Web	1,475	0.03	1,509	0.03	-2.80
Cougar	1,407	0.02	1,444	0.03	-3.11
IceWarp	1,347	0.02	1,354	0.02	-1.07
CloudFront	1,332	0.02	1,343	0.02	-1.37
xServers	1,253	0.02	1,256	0.02	-0.79
GlassFish	1,219	0.02	1,213	0.02	-0.07
III	1,162	0.02	1,169	0.02	-1.15
Zeus	1,109	0.02	1,117	0.02	-1.27
Sun-ONE-Web-Server	1,038	0.02	1,048	0.02	-1.51
Rumpus	1,008	0.02	1,008	0.02	-0.56
Oracle-Application-Server-11g	977	0.02	960	0.02	1.20
cpsrvd	934	0.02	941	0.02	-1.30
thttpd	848	0.01	854	0.01	-1.26
Bomgar	839	0.01	846	0.01	-1.38
FC	826	0.01	790	0.01	3.97
Boa	767	0.01	759	0.01	0.49
WebServer	746	0.01	654	0.01	13.43
EdgePrism	743	0.01	738	0.01	0.12
smartcds	733	0.01	856	0.01	-14.85
httpd	682	0.01	697	0.01	-2.70
Oracle	682	0.01	700	0.01	-3.11
Sun	673	0.01	696	0.01	-3.84
CommuniGatePro	668	0.01	677	0.01	-1.88
PWS	654	0.01	643	0.01	1.14
Demandware	653	0.01	655	0.01	-0.86
Cherokee	649	0.01	665	0.01	-2.95
YxlinkWAF	622	0.01	379	0.01	63.20
Pantheon	622	0.01	579	0.01	6.83
ODERLAND	619	0.01	0	0.00	N/A
Netscape-Enterprise	616	0.01	652	0.01	-6.05
GWS	601	0.01	624	0.01	-4.22
ATS	590	0.01	560	0.01	4.77
*****************	564	0.01	587	0.01	-4.45
ScreenConnect	550	0.01	533	0.01	2.61
Sun-Java-System-Web-Server	528	0.01	533	0.01	-1.49
Apache-AdvancedExtranetServer	516	0.01	549	0.01	-6.53
redir-httpd	506	0.01	510	0.01	-1.34
kisa	492	0.01	484	0.01	1.09
Jetty	486	0.01	482	0.01	0.27
FlashCom	480	0.01	492	0.01	-2.98
Oracle-iPlanet-Web-Server	478	0.01	479	0.01	-0.76
ngx_openresty	465	0.01	471	0.01	-1.82
SonicWALL	452	0.01	441	0.01	1.92
TWebAP	424	0.01	393	0.01	7.29
NOYB	421	0.01	420	0.01	-0.32
Google	420	0.01	423	0.01	-1.26
Server	409	0.01	391	0.01	4.02
Abyss	407	0.01	405	0.01	-0.07
WS	402	0.01	389	0.01	2.77
NetBox	380	0.01	358	0.01	5.55
Unknown	377	0.01	371	0.01	1.05
gunicorn	371	0.01	377	0.01	-2.14
AnWeb	361	0.01	366	0.01	-1.92
SAP	348	0.01	348	0.01	-0.56
yunjiasu-nginx	346	0.01	299	0.01	15.07
WebServerX	337	0.01	352	0.01	-4.79
WebtoB	325	0.01	325	0.01	-0.56
OpenCms	322	0.01	333	0.01	-3.84
Footprint	320	0.01	311	0.01	2.32
QRATOR	309	0.01	305	0.01	0.75
ghs	307	0.01	295	0.01	3.49
ASERVER	307	0.01	339	0.01	-9.94
Nginx	303	0.01	0	0.00	N/A
WebSphere	301	0.01	310	0.01	-3.44
HTTP	279	0.00	0	0.00	N/A

Note: Readers are cautioned that the Growth percentages are based on a server's market share penetration rather than the absolute number of servers we detected. Thus, it is possible for the number of servers to increase, while the growth is actually a negative value.